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Mobil 1™ 15W-50

Mobil 1 15W-50

Mobil 1™ 15W-50 is an advanced synthetic engine oil designed to help provide exceptional wear protection for a smooth driving experience. Mobil 1 15W-50 meets or exceeds the requirements of the industry and car manufacturers' standards required for high-performance turbo-charged, supercharged gasoline and diesel multi-valve fuel injected engines. Mobil 1 15W-50 is a winning, race-proven technology. It is especially suited for a wide variety of motorsports applications, towing, and other severe service situations. Mobil 1 15W-50 helps to provide outstanding engine oil performance and protection for the winning edge. Mobil 1 is the official motor oil of NASCAR.

Mobil 1 15W-50 is made with a proprietary blend of high performance synthetic basestocks fortified with a precisely balanced component system. Mobil 1 15W-50's heavier viscosity together with this high-performance component system helps to provide the ultimate in dynamic lubricant protection. This feature is supported, not only by meeting or exceeding the toughest industry performance standards, but also it is proven in gruelling racing applications. Key features and potential benefits include:

FeaturesAdvantages and Potential Benefits
Advanced synthetic formulaHelps prevent deposits and sludge build-up to enable long engine life Excellent overall lubrication and wear protection performance for many driving styles
Outstanding thermal and oxidation stabilityOutstanding performance during the maximum oil change interval recommended in a vehicle’s owners manual
Extra anti-wear additiveExtra protection for severe service


Mobil 1 15W-50 is recommended for use in high-performance turbo-charged, supercharged gasoline and diesel multi-valve fuel injected engines found in passenger cars, light vans and trucks as recommended in a vehicle’s owners manual:

  • Mobil 1 15W-50 is suitable extreme engine stress conditions, where conventional oil often may not perform.
  • Mobil 1 15W-50 is not recommended for 2-Cycle or aviation engines, unless specifically approved by the manufacturer.

Mobil 1 15W-50 meets or exceeds the requirements of:  
ACEA A3/B3, A3/B4

According to ExxonMobil, Mobil 1 15W-50 is of the following quality level:  


Mobil 1 15W-50 
SAE Grade15W-50
Viscosity @ 100ºC, cSt (ASTM D445)18
Viscosity @ 40ºC, cSt (ASTM D445)125
Viscosity Index160
Sulfated Ash, wt% (ASTM D874)1.21
HTHS Viscosity, mPa•s @ 150ºC (ASTM D4683)4.5
Pour Point, ºC (ASTM D97)-39
Flash Point, ºC (ASTM D92)232
Density @15.6º C g/ml ASTM D4052)0.87